Set of 5 books by the International Textbook Company of Scranton, PA. This was a mail order degree company which provided certificates in a variety of mechanical and industrial fields. Set includes the following: Trigonometry -Slide Rule- Mechanics 145, copyright 1936; Geometrical Drawing, 163C, c.1935; Geometry & Trigonometry 237, c. 1932; Formulas -Cube Root- Logarithms, 235B, c. 1938; Elements of Algebra, 291,c 1933.
These books were designed for at-home study and are complete with instructional text, mathematical formulas, diagrams, charts and graphs to illustrate concepts. An interesting look back at engineering education from nearly 100 years ago.
Vintage estate find, please see photos. Overall in good condition. Pages are intact and binding is in good condition. Minor wear to cover, especially to corners, as expected for a book that is nearly 90 years old! In very good condition for age and would be great for study or display.
